"""
This is c5
"""
import sys

a = 1
b = 2

# infos = dir()
# print(infos)

infos = dir(sys)
print(infos)

print('name: ' + __name__)
print('package: ' + (__package__ or '当前模块不属于任何包'))
print('doc: ' + (__doc__ or '当前模块没有文档注释'))
print('file: ' + __file__)


if __name__ == '__main__':
    print('This is application')

print('This is module')